KR100779271B1 - Lifting and swivelling device for railway structure bearing a combined transport railway/road car - Google Patents

Abstract

The present invention relates to a lift and pivot mechanism of a rail / road combination transport railcar having a rail carrier structure (6). The lifting and rotating mechanism comprises at least one lifting means and at least one rotating means motor driven to the ground, the lifting and rotating means being at least one of the rail carrier structures for unloading road freight to the rail carrier structure 6. At least one support and travel track 11 on the bottom surface of the end is supported and raised and then rotated.

Description

RIFTING AND SWIVELLING DEVICE FOR RAILWAY STRUCTURE BEARING A COMBINED TRANSPORT RAILWAY / ROAD CAR}

The present invention relates to a lifting and rotating work mechanism of a rail carrier structure in which road freight is carried in a rail / road combination transport railcar.

Most rail / road combination transport railcars having a rail carrier structure on which road freight is loaded utilize an internal motor engine for rotating the rotatable rail carrier structure.

These engines are inherently tools attached to railcars that typically use the energy of the body.

This is described in PCT 8102142 filed by BEHRENS.

The solutions mentioned in the prior art provide a deceleration mechanism and a coupling mechanism for converting the rotational motion generated through the mechanical energy source into the rotational motion.

These solutions have several important disadvantages:

The first drawback is energy consumption, which does not provide a consistent supply of energy. As a result, the motor must be mounted on other equipment again, which slows down the work. In addition, this energy consumption causes problems in the operation of other equipment connected to the main body, especially safety related equipment.

The second disadvantage is the cost of the equipment, which requires that at least one equipment be mounted on a railcar. That is, a problem arises in that the same equipment cannot be reused in another railcar.

A third drawback is the angle of the pivoting operation, and virtually no equipment of the prior art can make all the ends of the rail carrier structure free. As a result, it is impossible to reach larger angles during the rotational movement. The size of the rotation angle determines the efficiency, safety and speed as well as the stability in the work.

The last drawback relates to the maintenance costs of the equipments, which incurs significant excess costs for the maintenance of railcars equipped with such equipment.

The present invention aims to solve all the above mentioned disadvantages simultaneously while preserving flexibility in use.

To this end, the present invention provides a mechanism that combines lifting and pivoting operations for a rail carrier structure on which road freight is carried in a rail / road combination transport railcar.

The mechanism includes at least one lifting means and at least one rotating means driven by a motor on the ground, the lifting means and rotating means supporting a lower portion of at least one end of the rail carrier structure to unload road freight to the rail carrier structure. It is characterized in that after rotating to raise.

Hereinafter, further features and advantages of the present invention will be described with reference to the accompanying drawings.

1 is a schematic perspective view of a unloading station comprising a lifting mechanism on a railroad track and bearing rollers on a track platform;

2 is a perspective view of the lifting mechanism according to the present invention viewed from a certain angle from above;

3 is a perspective view of the lifting mechanism according to the present invention viewed from below at an angle;

4 is a perspective view schematically showing a state in which the electric drive rollers of the mechanism according to the present invention enter the ascending and traveling contact with the support and travel tracks of the rail carrier structure end of the railcar;

5 to 8 show several operational steps,
5 is a neutral position retracted down,
6 shows the up movement without load,
7 is in contact with the lower surface of the railcar,
8 shows an upward movement with a load;

FIG. 9 is a diagram corresponding to FIG. 8, showing a schematic view of an example in which the holding mechanism of the end platform is mounted to this mechanism. FIG.

Since the lifting mechanism described below also lowers the rail carrier structure, it will be more accurate to call it the lifting-lowering mechanism. However, for the sake of simplicity, hereinafter, only the raising mechanism is referred to for this rising and falling function. This lifting mechanism also provides for rotation of the rail carrier structure.

As shown in FIG. 1, a lift and pivot mechanism 1 is provided on a railroad track 2 having two track platforms 3, 4 for unloading on both sides. This lifting and rotating mechanism 1 is preferably installed between two rails of the unloading station 5, which is formed in the form shown in FIG. 1. In the form of a railcar used in the unloading station shown in FIG. 1, two lifting and rotating mechanisms 1 are provided, each lifting and rotating mechanism 1 for each end of the rail carrier structure 6. will be. In the illustrated embodiment, the rail carrier structure is raised at both ends simultaneously and rotated about a central pivot point (not shown). However, it may be rotated about the rotation point of one end.

Since the two lifting and rotating mechanisms 1 are the same, only one mechanism will be described below for simplicity.

The lifting and rotating mechanism 1 comprises a group of a plurality of bearing rollers and two racks 7, 8, preferably three rollers each arranged on a drive roller, for example one track platform 3, 4. Is added, and the rail carrier structure 6 is supported by the base to a certain extent such that the projection towards the track platform additionally retains and picks up the rail carrier structure 6, optionally. ) Is rotated. Among the rollers, the rollers of the racks 7 and 8 are housed in grooves formed at an appropriate distance from the edge of the track platform, as shown in FIG. 1. These rollers extend slightly above the surface of the track platform to pick up the rail carrier structure on the track platform. These rollers are preferably electrically driven and are assemblies made of a truncated cylinder of truncated cone shape so as to take advantage of the difference in circumferential speed from one end to the other in order to prevent slippage. The side of the roller is covered with a metal round strip 10 in contact with the support and travel tracks 11 (see FIG. 4) belonging to at least one side of the rail carrier structure 6 of the railcar. The rollers include an electric drive motor 12.

As shown, the rail carrier structure 6 has, for example, an attachment plate or other form of flat support and running track 11 at the bottom of at least one end. Because of the nature of the pivoting movement, this support and running track 11 has a curved shape, the radius of curvature of which is equal to or similar to the distance away from the pivoting point of the rail carrier structure 6 as shown in FIG. 4.

In the present embodiment, two lifting and rotating mechanisms are provided, but an embodiment in which a single lifting and rotating mechanism is provided with one rotating point at a position off the end or the center of the railcar is also possible.

In this case, the raising and rotating mechanism is substantially as described next, and no other technique is necessary.

In general, the lifting and rotating mechanism according to the invention is a mechanical assembly 13 which is installed on a railroad track 2 between two rails at the height of a place for unloading, hereinafter referred to as the unloading station 5. The bottom of this mechanical assembly 13 is housed in a moat, which can minimize the height of protrusion of the assembly with respect to the ground. The part housed in the ground is preferably protected from climate and other exposure by a separate plate.

It is also possible to install the mechanical assembly 13 in a wagon which is movable along the track in the moat between the rails of the track.

The upper part can also be provided with a removable protection against exposure to the climate, for example in the form of a cover (not shown).

The mechanical assembly 13 of the instrument according to the invention is mounted on a support base between base plates or rails which forms a mechanical footing and allows for installation in the moat. For simplicity, these means are not shown.

On the other hand, the mechanical assembly 13 of the lifting and rotating mechanism 1 according to the present invention is formed of a pivoting support 14 in the form of a pivoting caisson that pivots around the pivoting pin 15. The pivot support 14 is divided into two or more branches 16, 17, each branch consisting of electric drive rollers 20, 21 connected to each other by a common transverse tubular element 22. The ends are supported on the electric drive units 18, 19. Each electric drive roller 20 or 21 is also supported by articulated vibratory supports 23, 24. The transverse tubular element 22 penetrates the branches 16, 17 and passes into a sleeve that is snapped to and supported by the receiving portion 25 having a V-shaped opening. Each articulating vibration support 23, 24 is connected to the push rods of the lift jacks 26, 27, and the body of the lift jack is further formed by eg two parallel yokes 32, 33 absorbing lateral deflections. It is rotatably mounted around the shafts 28 and 29 having a deformable bearing on the supports 30 and 31.

The lift jacks 26 and 27 act to push up the articulating vibration support which supports the electric drive unit to rise.

The electric drive rollers 20, 21 are of the same form as the rollers of the rack which are arranged on the track platform already described. Each roller comprises a rotating cylinder 9 covered with a truncated round metal strip 10. The rollers have their longitudinal axes radially mounted with respect to the pivot point of the rail carrier structure 6 and are rotated under the action of the electric drive motor 12. The rollers are arranged in this embodiment to be slightly convergent towards the pivot point of the centrally located rail carrier structure 6. By arranging in this way, it is possible to prevent the risk of the rail carrier structure 6 being transversely moved during the up and down movement.

These electrically driven rollers 20, 21 first contact the support and travel track 11 (FIG. 4) under one end of the rail carrier structure to transmit vertical thrust in order to raise the rail carrier structure under the action of lift jacks. Is formed. After the rail carrier structure is raised, the rollers rotate to roll drive on the support and travel tracks to pivot the rail carrier structure.

The adjustment mechanism ensures complete flat contact of the support and travel tracks 11 with the electric drive rollers 20, 21. This adjustment mechanism is schematically illustrated in a series of side views illustrating the operation of FIGS. 5 to 8.

In order to prevent premature wear, it was necessary to ensure that the final approach and lift motions were carried out along a vertical or nearly vertical path to prevent movement between each electric drive roller and track during contact and lift.

The following describes an exemplary method for achieving this. However, there may be other equivalent technical measures, which are also within the scope of the present invention.

According to this embodiment, the pivot pin 15 of the pivot support 14 can move relative to the initial position corresponding to the horizontal position of the pivot support. By this movement, the end of the support can be moved in an almost vertical path provided by the lift jack, so that the electric drive roller is also moved in the vertical path, thereby vertically aligning the path portion corresponding to the final approaching and raising step. Can be maintained.

The developed means are as follows.

The pivot pin 15 of the pivot support 14 is, for example, provided at each end in two rockers to pivot around the second shaft 34.

During dead travel, ie during the no-load stroke of the lift jack before contact of the support and travel tracks with the electric drive rollers, no large thrust is applied to the lift jack. The lift jack simply raises the electric drive rollers. The pivot support 14 pivots around the pivot pin 15 held in its original position (see FIGS. 6 and 7).

When the pivot pin 15 is moved, the pivot pin 15 is moved forward by the effect of the oblique traction of the pivot support which is lifted by the leaf jack. The mechanism described here extends the geometry of the lever arm as necessary to deform the path almost vertically from the arc shape at the final part of the path by slight displacement of the pivot pin 15 of the pivot support 14 ( 8 and 9).

Above, an embodiment of a mechanism in which the lifting means and the rotating means are combined into one to have one mechanical assembly 13 has been described.

However, all equivalent embodiments in which the lifting means and the rotating means are not combined, ie in parallel or separate configurations, can be considered, which are within the same inventive concept.

The action of raising and rotating may be combined. In such cases, corresponding embodiments are within the scope of the present invention.

Additional functions may be added to the pivot support. The pivotal support may also comprise means for supporting and holding the position of the corresponding end platform of the rail car during the unloading operation. An example of such means is shown in FIG. 9. Here, a V-shaped receiving and locking structure 35 is provided on the upper surface of the pivot support 14, where the end 36 of the extension 37 facing the bottom of the body of the end platform is received and locked. do.

The operation process includes the following general steps.

The rail / road combination transport railcar is fixed to a certain tolerance at a predetermined point of the unloading station 5 for the purpose of loading or the like.

The stationary position of the railcar at a certain point corresponds to the position of the end platforms that must be protected from the mechanism located on the track during movement. If these devices are independent instruments, they operate. Another example that may be considered is that relative positions may be automatically maintained by a mechanical link between the end platforms or by an additional function of the lifting and rotating mechanism (s) as described above.

The use of the lift and pivot mechanism (s) is as follows. The lift jack is operated to bring the electric drive rollers 20, 21 to the corresponding support and travel tracks 11 below the ends of the rail carrier structure 6. The electric drive rollers 20, 21 are raised to a point for smooth and flat contact with the support and travel tracks 11 by the operation of the adjustment mechanism. After unlocking the detachable connecting link between the rail carrier structure and the end platforms, the two ends or the corresponding one end of the rail carrier structure are correspondingly raised.

The upward movement is divided into two parts. The first relates to a slight displacement corresponding to the suspension relaxation of the end platforms. The second relates to self-raising, which stops shortly after the end separation between the rail carrier structure 6 and the receiving shapes of the end platforms, and generally has a small additional rise because there is no obstacle to pivot on the end platform.

The electric drive rollers 20, 21 are then rotated by their own motors so that the corresponding edges of the ends of the rail carrier structure 6 have racks 7, 8 of electric drive support-traveling means in the track platform. The end of the rail carrier structure of the railcar body is rotated in the same direction until it is transferred to.

This rotation continues until the end of the rail carrier structure is completely at an end platform and is placed obliquely at a suitable angle for easy unloading operation.

Unloading is now carried out. The cargo is unloaded to the rail carrier structure by its own means, for example by means of a tractor moving it for a semi trailer.

The operation of returning the rail car is performed in the reverse order.

Claims (12)

In the lifting and rotating mechanism for raising and rotating one or more of the ends of the rotary rail carrier structure 6 supporting the road cargo for the unloading operation of the rail car in the railway / road combination transport loading station, One or more lifting means and one or more rotating means motor-driven in the ground, the lifting and rotating means being at the bottom surface of one or more ends of the rail carrier structure to unload road freight to the rail carrier structure (6). A lifting and rotating mechanism, characterized in that the support and the lifting track (11) to raise and rotate. The lifting and rotating mechanism as claimed in claim 1, wherein said at least one lifting means and at least one rotating means are combined into one mechanical assembly (13). Lifting and rotating mechanism as claimed in claim 2, characterized in that the mechanical assembly (13) comprises a pivot support (14) for supporting the rotation means. 4. The lifting and rotating mechanism as claimed in claim 3, wherein the rotating means can be moved vertically by the propulsion device. 4. The ascending and pivoting mechanism as claimed in claim 3, wherein the pivoting movement of the pivotal support portion 14 supporting the rotating means is adjusted by the adjustment mechanism such that the final approach and the ascending path to the support and traveling tracks are vertical. . The lifting and rotating mechanism as claimed in claim 4, wherein the rotational movement of the pivot support portion (14) and the propulsion vertical movement of the rotation means are combined. The lifting and rotating mechanism as claimed in claim 5, wherein the adjustment mechanism consists of moving the pivot pin (15) of the pivot support (14). 2. The rotating means according to claim 1, wherein the rotating means are electric drive rollers 20, 21 having a truncated conical metal surface, said electric drive rollers belonging to the electric drive unit and comprising an electric drive motor 12 on the rotating shaft. Features a lift and tilt mechanism. 9. The lifting and rotating mechanism as claimed in claim 8, wherein the axis of rotation of the electric drive roller is directed radially with respect to the pivot point of the rail carrier structure. The lift and pivot mechanism according to claim 2, wherein the mechanical assembly (13) has an additional function of maintaining the position of the end platform on which the rail carrier structure is seated. The lifting and rotating mechanism as claimed in claim 2, wherein the mechanical assembly is mounted so as to be able to move longitudinally with respect to the railway track. 2. The lift as claimed in claim 1, wherein the support and travel tracks 11 on the lower surface of the at least one end of the rail carrier structure are in the form of an arc centered at the pivot point between the rail carrier structure and the railcar. And rotating mechanism.

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